/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Public/OnlineSubsystemUtils.h
the array of valid credentials the user has setup for Play In Editor (PIE)
void GetPIELogins ( [TArray](API\Runtime\Core\Containers\TArray)< [FOnlineAccountCredentials](API\Plugins\OnlineSubsystem\Interfaces\FOnlineAccountCredentials) > & Logins )